Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe08e95dc5833f2…

MALICIOUS

PDF

52.5 KB Created: 2020-08-24 21:21:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 903c87ef014d473541435b56ade5ec2b SHA-1: 267f628047a696b4c11d9678674e43ffdb737368 SHA-256: 9fe08e95dc5833f2c9428ec87cb6a1fa66d5ba987f1810a91497453a25ad455a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, including one that redirects to a known malicious domain (ttraff.com). The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. This suggests a phishing or redirection attack aimed at delivering further malware or leading the user to a malicious site.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=bitmap+format+file+size
    • http://fojom.titaniumflower.com/uploads/1/3/1/0/131071164/kukume.pdf
    • http://files.richardfite.com/uploads/1/3/2/6/132680813/c78a10ae.pdf
    • http://files.blueskiesforchildren.org/uploads/1/3/2/8/132814030/mavokupojebezil_mozix.pdf
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/software_of_computer.pdf
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/54934895253.pdf
    • https://cdn.shopify.com/s/files/1/0432/7384/6952/files/revilikufuxatu.pdf
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/14864163965.pdf
    • https://cdn.shopify.com/s/files/1/0433/5514/4347/files/jateja.pdf
    • https://cdn.shopify.com/s/files/1/0430/3002/0247/files/72526591382.pdf
    • https://cdn.shopify.com/s/files/1/0447/9470/8117/files/11373477679.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/english_words_meaning_in_urdu_list.pdf
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/novobebaforeraja.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/mafemofukokorozanev.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/57881529068.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9295/files/bookkeeping_and_accounting_textbook.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • https://cdn.shopify.com/s/files/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f16.bin
4bd378f160c5e771a60057b6259df7ad89d6cbae18b9086ace230c90e61df5fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F16 5148 bytes
font_01_sfnt_off0000a082.bin
8eb739992c9fcfd8b7505763cce585cc54f2c240c86980e48d849defb1fa3772		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA082 11152 bytes

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